Home / 10,927.80-16,380.28-7,418.08

Finding the Fourth Proportional to 10,927.80, 16,380.28 and 7,418.08

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Solution

The fourth proportional to 10,927.80, 16,380.28 and 7,418.08 is: 11,119.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,927.80 : 16,380.28 = 7,418.08 : x
  2. Step 2: Convert to fraction form
    10,927.80/16,380.28 = 7,418.08/x
  3. Step 3: Cross multiply
    10,927.80x = 16,380.28 × 7,418.08
  4. Step 4: Simplify right side
    10,927.80x = 121,510,227.46
  5. Step 5: Solve for x
    x = 121,510,227.46/10,927.80
  6. Step 6: Final answer
    x = 11,119.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.